2019 Mercedes AMG E 63 vs. 2019 Audi RS 5 Sportback

Detailed Review, Specifications & Comparison

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The middle row seatbelts optional on the AMG E 63 inflate when a collision is detected, helping to spread crash forces over a much larger area of the body and limiting head and neck movement. This can help prevent spinal and internal injuries. The RS 5 Sportback doesn’t offer inflatable seatbelts.

The AMG E 63’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The RS 5 Sportback doesn’t offer a driver alert monitor.

Both the AMG E 63 and the RS 5 Sportback have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, rearview cameras, rear cross-path warning and available lane departure warning systems.

The Mercedes AMG E 63 weighs 440 to 668 pounds more than the Audi RS 5 Sportback. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.


There are over 26 percent more Mercedes dealers than there are Audi dealers, which makes it easier should you ever need service under the AMG E 63’s warranty.


To reliably power the ignition and other systems and to recharge the battery, the AMG E 63 has a standard 180-amp alternator. The RS 5 Sportback’s standard 110-amp alternator and largest (optional) 150-amp alternator aren’t as powerful.

To reliably start during all conditions and help handle large electrical loads, the AMG E 63 has a standard 850-amp battery. The RS 5 Sportback’s 420-amp battery isn’t as powerful.

J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Audi vehicles. J.D. Power ranks Mercedes 15th in initial quality, above the industry average. With 13 more problems per 100 vehicles, Audi is ranked 25th, below the industry average.


The AMG E 63’s 4.0 turbo V8 produces 159 more horsepower (603 vs. 444) and 184 lbs.-ft. more torque (627 vs. 443) than the RS 5 Sportback’s 2.9 turbo V6.

Fuel Economy and Range

An engine control system that can shut down half of the engine’s cylinders helps improve the AMG E 63’s fuel efficiency. The RS 5 Sportback doesn’t offer a system that can shut down part of the engine.

In heavy traffic or at stoplights the AMG E 63’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The RS 5 Sportback doesn’t offer an automatic engine start/stop system.

The AMG E 63 has 5.8 gallons more fuel capacity than the RS 5 Sportback (21.1 vs. 15.3 gallons), for longer range between fill-ups.


A nine-speed automatic is standard on the Mercedes AMG E 63, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the RS 5 Sportback.

The AMG E 63’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The RS 5 Sportback doesn’t offer launch control.

Brakes and Stopping

For better stopping power the AMG E 63’s brake rotors are larger than those on the RS 5 Sportback:

AMG E 63

AMG E 63

RS 5 Sportback

RS 5 Sportback

Front Rotors

15.4 inches

15.8 inches

14.8 inches

15.7 inches

Rear Rotors

14.2 inches

14.2 inches

13 inches

13 inches

Tires and Wheels

For better traction and acceleration, the AMG E 63 has larger rear tires than the RS 5 Sportback (295/30R20 vs. 265/35R19). The AMG E 63’s rear tires are larger than the largest rear tires available on the RS 5 Sportback (295/30R20 vs. 275/30R20).

The AMG E 63’s 295/30R20 rear tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the RS 5 Sportback’s standard 35 series tires.

For better ride, handling and brake cooling the AMG E 63 has standard 20-inch wheels. Smaller 19-inch wheels are standard on the RS 5 Sportback.

Suspension and Handling

The front and rear suspension of the AMG E 63 uses air springs for a smoother, controlled ride than the RS 5 Sportback, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

The AMG E 63 has a standard driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The RS 5 Sportback’s suspension doesn’t offer adjustable shock absorbers.

The AMG E 63 has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The AMG E 63’s height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The RS 5 Sportback doesn’t offer a load leveling suspension.

The AMG E 63’s drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The RS 5 Sportback doesn’t offer drift compensation steering.

For a smoother ride and more stable handling, the AMG E 63’s wheelbase is 4.5 inches longer than on the RS 5 Sportback (115.7 inches vs. 111.2 inches).

For better handling and stability, the track (width between the wheels) on the AMG E 63 is 2 inches wider in the front and .3 inches wider in the rear than on the RS 5 Sportback.

Passenger Space

The AMG E 63 Wagon has standard seating for 7 passengers; the RS 5 Sportback can only carry 5.

The AMG E 63 Sedan has .1 inches more front legroom, 2.1 inches more front shoulder room, 1.2 inches more rear headroom, 1.1 inches more rear legroom and 2.6 inches more rear shoulder room than the RS 5 Sportback.

Cargo Capacity

The AMG E 63 Wagon’s cargo area provides more volume than the RS 5 Sportback.

AMG E 63

RS 5 Sportback

Third Seat Folded

35 cubic feet


Third Seat Removed


21.8 cubic feet

Second Seat Folded

64 cubic feet

35 cubic feet

With its sedan body style, valet key, locking rear seatbacks and remote trunk release in the glovebox, the AMG E 63 offers cargo security. The RS 5 Sportback’s defeats cargo security.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Mercedes service is better than Audi. J.D. Power ranks Mercedes fifth in service department satisfaction. With a 13% lower rating, Audi is ranked 8th.


The AMG E 63 has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The RS 5 Sportback doesn’t offer a remote starting system.

Unlike the driver-only memory system in the RS 5 Sportback, the AMG E 63 has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

The AMG E 63’s standard easy entry system raises the steering wheel, making it easier for the driver to get in and out. The RS 5 Sportback doesn’t offer an easy entry system.

The AMG E 63’s standard power windows have a locking feature to keep children in the rear seat from operating them. Audi does not offer a locking feature on the RS 5 Sportback’s standard power windows.

If the windows are left open on the AMG E 63 the driver can close them all at the outside door handle or from a distance using the remote (remote must be aimed at door sensor). On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the RS 5 Sportback can’t use the remote to operate the windows.

To help drivers see further while navigating curves, the AMG E 63 offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The RS 5 Sportback doesn’t offer cornering lights.

A power rear sunshade is optional in the AMG E 63 Sedan to help block heat and glare for the rear passengers. The RS 5 Sportback doesn’t offer a rear sunshade.

Both the AMG E 63 and the RS 5 Sportback have standard heated front seats. The AMG E 63 also offers optional heated second row seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the RS 5 Sportback.

The AMG E 63 offers an optional 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The RS 5 Sportback doesn’t offer a house-current electrical outlet.

The AMG E 63’s Active Parking Assist can parallel park by itself, stopping and changing direction automatically. The RS 5 Sportback’s automatic parking system requires operating the brakes and transmission to safely park.

Model Availability

The Mercedes AMG E 63 comes in sedan and station wagon bodystyles; the Audi RS 5 Sportback isn’t available as a station wagon.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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